Anatomy of the Gastrointestinal System

Cardia (entrance), fundus, body, and pylorus (outlet)

The stomach has four anatomic regions: ________ (entrance), _________, _________, and _________ (outlet).

Small Intestine; duodenum, jejunum, ileum

It is the longest segment of the GI tract, accounting for about two thirds of the total length. It has three sections: The most proximal section is the _________, the middle section is the _________, and the distal section is the _________.

Ascending Segment, Transverse Segment, Descending Segment, Sigmoid Colon, Rectum, Anus

The large intestine consists of _________ segment, _________ segment, __________ segment, _________ colon, _________, and __________.

Gastric Artery; Mesenteric Arteries

Oxygen and nutrients are supplied to the stomach by the ________ artery and to the intestine by the ________ arteries.

20%

Blood flow to the GI tract is about ___% of the total cardiac output and increases significantly after eating